Node synchronization method and device, storage medium and node

A node and synchronization level technology, applied in the field of communication, can solve the problems of not considering node frequency synchronization, poor synchronization accuracy, etc.

Pending Publication Date: 2020-07-24
南京大鱼半导体有限公司
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Problems solved by technology

[0003] The purpose of the present disclosure is to provide a node synchronization method, device, storage medium and node to solve the poor synchronization accuracy be

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  • Node synchronization method and device, storage medium and node
  • Node synchronization method and device, storage medium and node
  • Node synchronization method and device, storage medium and node

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Embodiment Construction

[0090] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0091] figure 1 It is a flowchart of a method for synchronizing nodes according to an exemplary embodiment. Such as figure 1 As shown, applied to the first node in the wireless ad hoc network, the method includes the following steps:

[0092] Step 101, receiving a second observation signal sent by the second node, the second observation signal includes the second clock offset betwee...

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Abstract

The invention relates to a node synchronization method and device, a storage medium and a node. The method is applied to a first node in a wireless ad hoc network. The method comprises the following steps: receiving a second observation signal sent by a second node, and according to the second clock skew and the first clock skew, determining target clock skew and target propagation time delay; anddetermining a target frequency deviation and a target Doppler frequency shift according to the second frequency deviation and the first frequency deviation, processing the clock of the first node according to the target clock skew and the target propagation time delay, and processing the crystal oscillator of the first node according to the target frequency deviation and the target Doppler frequency shift. According to the invention, the time skew can be divided into the target clock skew and the target propagation time delay, and the frequency deviation can be divided into the target frequency deviation and the target Doppler frequency shift, so that the nodes in the wireless ad hoc network can be kept synchronous in time and frequency, and the synchronization precision is improved.

Description

technical field [0001] The present disclosure relates to the technical field of communications, and in particular, to a node synchronization method, device, storage medium, and node. Background technique [0002] Wireless ad hoc network is a multi-hop, multi-point to multi-point wireless network system with self-organizing and self-healing characteristics. In a wireless ad hoc network, communication may occur between any two nodes, and a prerequisite for information transmission and exchange between two communicating nodes is that both communicating parties can maintain synchronization in time and frequency. At present, the signal of the transmitter is mainly measured by the receiver to obtain the time deviation between the two parties in communication, and this deviation is used to correct the time of the two parties in communication, so that the two parties in communication are synchronized in time. However, this method only considers the clock deviation and does not cons...

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Application Information

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IPC IPC(8): H04W56/00H04W84/18
CPCH04W56/001H04W84/18
Inventor 邓祝明周彬
Owner 南京大鱼半导体有限公司
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